Take the full 3999 experience everywhere you go. Live casino, sports betting, slots, and instant BDT deposits — all in one fast, secure mobile app built for players in Bangladesh.
Free to download | No hidden charges | 18+ only
The 3999 app is the most convenient way to enjoy everything the 3999 platform has to offer, right from your smartphone. Whether you are commuting in Dhaka, relaxing at home in Chittagong, or anywhere else in Bangladesh, the 3999 app keeps you connected to your favourite games and betting markets around the clock.
Designed from the ground up for mobile users, the 3999 app runs smoothly on both Android and iOS devices. The interface is clean, fast, and easy to navigate — even if you are new to online gaming. Everything you need is just a tap away: your balance, your bonuses, the game lobby, and your transaction history are all accessible from the main dashboard the moment you log in to the 3999 app.
One of the biggest advantages of the 3999 app is how well it handles deposits and withdrawals in BDT. You can top up your account using bKash, Nagad, or Rocket directly inside the app. There is no need to switch between apps or open a browser — the entire payment process happens within the 3999 app in under a minute. Withdrawals are processed just as quickly, with funds sent straight to your mobile banking account.
The 3999 app gives you access to the full game library, including live baccarat, live roulette, live teen patti, cricket betting, football markets, and a wide selection of video slots. The live casino section of the 3999 app streams in high definition, so you get the same quality experience on your phone as you would on a desktop. The 3999 app automatically adjusts the stream quality based on your internet connection, so even on a 4G connection you will have a smooth, uninterrupted session.
Security is built into every layer of the 3999 app. All data transmitted between your device and the 3999 servers is encrypted with SSL technology. The app also supports OTP-based login, which means your account is protected even if your phone is lost or stolen. You can log out remotely from the account settings inside the 3999 app at any time.
For players who prefer not to install an app, the 3999 mobile website works just as well. The browser version of 3999 is fully responsive and offers the same features as the app. However, the 3999 app provides a faster, more fluid experience with push notifications for new promotions, faster page loads, and a more polished interface overall.
The 3999 app is free to download and install. There are no subscription fees, no hidden charges, and no in-app purchases required to access any game. Your only spend is the amount you choose to deposit into your 3999 account. New players who register through the 3999 app are eligible for the full welcome bonus — up to ৳5,000 on your first deposit — which is credited automatically after your first successful top-up.
Updates to the 3999 app are released regularly to add new games, improve performance, and introduce new features. You can enable automatic updates on your device so you always have the latest version of the 3999 app without having to check manually. The update process is quick and does not interrupt any active game sessions.
| OS Version | Android 6.0 or higher |
| Storage Required | Approx. 45 MB free space |
| RAM | 2 GB minimum (4 GB recommended) |
| Internet | 4G / Wi-Fi recommended |
| APK Size | ~38 MB |
| Installation | Enable "Unknown Sources" in settings |
Don't want to install anything? The 3999 mobile website works on any browser and gives you full access to all games and features without downloading the app.
Get the 3999 app on your device in under two minutes. Follow these simple steps.
Open Chrome or any browser on your Android phone and go to 3999.io. Tap the App page link in the navigation menu to reach the download section.
Go to your phone's Settings, then Security or Privacy, and enable "Install from Unknown Sources" or "Allow this source." This is required for APK files downloaded outside the Play Store.
Tap the Android download button on this page. The 3999 APK file will download to your device in seconds. You will see a notification when the download is complete.
Tap the downloaded APK file and follow the on-screen prompts to install. Once installed, open the 3999 app, log in or register, and start playing immediately.
Visit 3999.io using Safari on your iOS device. Safari is recommended for the best installation experience on iPhone and iPad.
On the 3999 App page, tap the iOS download button. You will be guided through the installation process directly from your browser — no App Store required.
Go to Settings > General > VPN & Device Management and tap Trust for the 3999 app profile. This is a standard iOS step for apps installed outside the App Store.
Find the 3999 app icon on your home screen, tap to open, and log in with your existing account or register a new one. Your welcome bonus will be waiting.
The 3999 app is packed with features designed specifically for players in Bangladesh.
The 3999 app streams live baccarat, roulette, and teen patti in high definition. Real dealers, real tables, and real-time action — all on your phone screen with minimal buffering even on 4G.
Bet on cricket, football, kabaddi, and more directly from the 3999 app. Live odds update in real time and you can place bets mid-match with a single tap. BDT payouts are instant.
Deposit and withdraw in Bangladeshi Taka using bKash, Nagad, or Rocket inside the 3999 app. Transactions complete in under 60 seconds with no extra fees charged by 3999.
Never miss a promotion again. The 3999 app sends push notifications for new bonuses, cashback offers, and special events so you always know when there is extra value waiting in your account.
The 3999 app uses OTP-based two-factor authentication to keep your account safe. Every login is verified with a one-time code sent to your registered mobile number, so only you can access your account.
Set daily deposit limits, session time reminders, and cooling-off periods directly inside the 3999 app. These tools are always accessible from your account settings and take effect immediately.
The 3999 app is free, fast, and built for Bangladesh. Download it now, register your account in under two minutes, and claim your welcome bonus of up to ৳5,000 on your first deposit via bKash or Nagad.
18+ only | Play responsibly | Free to download